Adapter and booster casing for shells.



N W. DiNGWALL & C. M. BUDD.

ADAPTER AND BOOSTER CASING FOR SHELLS.

APPLICATION FILED JULY 26. 1918.,

1,296, 170. Patented Mar. 4,1919.

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N. W. DINGWALL & C. M. BUDD. ADAPTER AND BOOSTER CASING FOR SHELLS.

APPLICATION FILED JULY 26, 191B.

Patented Mar. 4, 1919.

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NELSON W. DINGWALL AND CLIFFORD M. BUDD, OF NEW YORK, N. Y.

ADAPTER AND BOOSTER CASING FOR SHELLS.

Specification of Letters Patent.

Patented Mar. 4, 1919.

Application filed July 26, 1918. Serial No. 246,897.

To all whom it may concern:

Be it known that we, NELSON W. DING- WALL and CLIFFORD M. Bonn, citizensof the United States, residing at New York, in the county of New Yorkand State of New York, have invented new and useful Improvements inAdapter and Booster Casings for Shells, of which the following is aspecification.

This invention relates to an adapter and booster casing for shells andprojectiles, and has as its purpose to provide a structure which isgreatly simplified so that the cost of manufacture is very substantiallyreduced.

In accordance with our invention, the adapter head and booster caslngare made by drawing a sheet of metal into substantially final formthereby doing away with the time and expense of carrying out variousoperations in machining the parts from bar stock or forgings and joiningthe parts together.

Since the adapter head and booster casing are integral, no joints areprovided therebetween through which gas might leak from the shell intothe interior of the booster casing, and this is of particular advantage,as it has been found that where the adapter and booster casing are madeseparately and then joined together, the gas of a gas shell will leakthrough the joint into the adapter head and then pass from the head andconstitute a source of danger to persons handling the shell.

In the accompanying drawings, we have illustrated several embodiments ofour in vention, but it is to be understood that the present disclosureis illustrative only and is not restrictive of our invention and that itis susceptible of various changes which would be within the spirit ofour conception without departing from the scope of the appended claims.

In said drawing,

Figure 1 is a longitudinal sectional view of one embodiment of ourimproved adapter and booster casing.

Fig. 2 is a sectional view taken on a line 2-2 of Fig. 1.

Fig. 3 is a sectional view on an enlarged scale showing the manner ofconnecting the fuse socket to the fuse socket holder.

Figs. 4, 5 and 6 are views similar to Fig. 1, but show differentembodiments of our invention.

Fig. 7 is a view similar to Fig. 1 but illustrates another form of ourinvention.

Fig. 8 is a perspective view of certain parts which may be used in theadapter head and easing shown in Fig. 7.

Fig. 9 is a longitudinal sectional view of still another form of ourinvention.

In the drawings, like reference characters designate like parts in theseveral views. Referring to that embodiment of our invention disclosedin Figs. 1 to 3, inclusive, 1O designates the booster casing having achamber which receives the booster charge and 11 designates the adapterhead. The adapter head and the booster casing are integral With eachother and are preferably formed from a single sheet of metal drawn tothe shape illustrated, so that the cost of manufacture is relativelylow, and no joints between the booster casing and the adapter arepresented through which gas may pass. The head 11 is of greater diameterthan the booster casing and the openingthrough the head 11 graduallyincreases in diameter tothreaded for a portion of its length, as at 14,so that it may be screwed into the threaded opening in the nose of theprojectile 15 which, for illustrative purposes, is shown in dottedlines. The threaded portion 14, preferably, will be tapered in the eventthe adapter is to be used in connection with a shell containing gas, butit may be straight, if desired. In the outer end of the adapter head 11are recesses 16 adapted to receive a spanner wrench when the head 11 isto be screwed into place. i

Fitting within the adapter head 11 is the bushing .17, which takes theplace of the usual fuse bushing and fuse socket holder, which parts arenow generally made in two pieces. The bushing 17, which is circular incross-section, tapers inwardly slightly toward its inner end so that itis frusto conical and corresponds in slope to the opening in theadjuster head 11. Adjacent the lower end of the bushing 17 the externalsurface is reduced and abruptly inclined as at 18. The inclination ofthe surface 18 is more pronounced than the shoulder 13 of the portion 12so that there is suflicient clearance 'ment. The-inner endof the bushingl7is bent radially inward to fo rm an internal lip on flange 19, towhich is connected :the "fuse socket 20 adapted toreceive thedetonati'ng charge." 1. The fuse socket 20 is made of sheet' netalsocket is' a; flange 21 formed by spinning thewall ofthesoeketioutwardly so as to fold the'spun out: portion uponitseli Tosecure. the fuse socket in place on the bush therebetween td permitthebushing" 17 to be tightly wedged in place inthefadapter' head withoutbringing these surfaces into engagepressed to the form of a thimble.Spaced a slight J distance from. the open end of the ing 17, r the open,end ofthe socket isinse'rted' within the lip. 19' until-the jfla nge,21 engages the lower 'surfaceof thelip and i 7 then the metal about theopen end "of the socketis bent outwardly to forma flange 22lwhieh'engages'the upper surface f'the It will be seen the abovedescription of the embodiment of the invention shown 2 in Figs. 1 to 3thatthe humber of separate parts is reduced to a minimum and each I ofthese parts requiresbut a relatiyelyjfe'w operations in, theirmanufacture. P The parts may be readily assembled, it being only necesdt pr per, pe sing l7? hasia body .pQrti0n-23 which-tapers 4 so as tofit" snugly; Within the head 11 and" c or ally and inwardly toiprov de afiange19,' to which th :fujsesocket920 is secured. At r sary,f after thefuse. seeker 20 vis connected to-the bushing17 ,tolinsertthe bushinginto 7, the head 11, and then or drive =it' 'into place." Due tothewedging 'fit between the head and 'Vbushing a';gas-tight joint isgpo- 35 yided therebetween i w metal drawn to the shape illustrated, butiii ruptly inclined" portionyl of the-preeed ing embodimentbeinglomittedl V V 7 f The bushing 17 of Figfil'is made'froin a 7 singlepiece of metal drawing the same The formed f bushat its 'lowe'r; end thebushingjis bent radi the upper or outer end ,of-the bodyipojrtion thewalls, of thefbushing are bent over and then extend ,inward1y of thebody' po r tionto form a cylindrical. sleev'e 2 l, which 7 e "isconcentric. to the longitudinal center of the'head' and this;sleeye'is'internally threaded as at'25 so} as to receive the comple-Inentary screw threadslon: the nipple of the V V fuse body, such assh'own-in dotted lines in Fig.1.

thatv the lower .end fof the V threaded so as to explosive and thenthewasher in somerespects,

and a socket carrying adapter shown in' Fig. 1, and the bushing 17 issimilar in construction to that shown in Fig. '43 In F ig. 5, parts ofthe booster casing and adapter head are designated by thesanie numeralsas those employed to indicate likeparts in Fig. 1, and the parts of thebushing 17 are designated by the same numerals as the bushing in Fig. 4.

i In the embodiment shown in Fig. 6 the head has a tapering body portion11 and a skirt 25 surrounding the portion 11 and the skirt is externallythreaded as at 26'so that the. adapter may be screwed into. the

threaded opening in the nose of the bullet.

The'bushing 17 is similar to the. bushing 17", as shown in thetwonextpreceding embodiments, but in this instance the tapering opening of thehead 11" and the bushing are provided with complementary screwthreads27,- sothat the bushing is screwed into] the head." The threads 27terminate short ofthe l'owerend of the bushingso bushing, has awedgelike fit in'theadapter head. n i In that embodiment ofourflinvention shown in 7, the booster easing 10 and the adapter head 11are formed: fromla single sheet of metal drawn to the shape illustrated,but in this instance, there isasharp internal shoulder 28; betweenthehead and casing," and thejope'ning through the, head is not tapered, but7 is' of like diameter throughout itslength, The opening through thehead,-at its outer end, is "threaded as at I 29,fso asto receive inthreaded engagement a bushing 30 which. carries a sleeve31, whichsleev'e, inthis embodiment, is integral with the bushing. The bushing 30isinternally indotted lines. V. Resting upon the shoulder 28 is aeentrally apertured 'w'asher or disk 32, to which the fuse socket '20 issecured'in the same manner as-in the preceding embodiments i v Toassemble the partsshown'in Fi'gi'f, the booster casing 10 is {chargedwith a suitable carrying the fuse sOcketQO, is inserted in the head andrests ;upon" the shoulder 28f: The bushing and sleevejare then screwedinto place, I

receiyethe fus'e body shown 1 Fig; Sfthe bushing;30 is independent 7 ofthe sleeve 319'. Itgis, of. fc'o'ur'se, evident that the bushingandsleeve' may be inside iii- ;tegral,--as shown in Fig. 7, orseparately; as

shown inEigB. V The structure shown in Fig. 9 resembles, 1, andinoothers the -;7. In this instance, a shoulder 28 -is formed betweenthe head 11 and thebooster casing 10 andithe openingthroughthe head isnot structure shown" in: Fig.

V, V V tapered.-Insteadof making theruse socket j In the embodimentshown inFigQ, 5, the V boostencasing ewdhe headll are almost identicalto thebooster easing and holder and bushing integral, as showniin Fig.'1, asep'a'rate bushing: 3,0, a' sleeve 31,

member" 32 are 1 prothe structure 'sliQW liin Fig; '7

vided. The shape of the socket carrying member 32 is similar to thelower portion of the bushing 17 of Fig. 1. It is, of course, evidentthat in Fig. 1 the bushing 17 may be divided into three parts,corresponding to parts 30, 31, and 32 of Fig. 9.

It will be noted that in each embodiment of our invention the adapterhead and booster casing are made integral with each other and arepreferably formed by drawing a sheet of metal to the desired shape.

What we claim is:

1. In combinatioma booster casing, and an adapter head having a ta eringopening, said booster casing and hea being formed by drawing a singlesheet of metal to the proper shape.

2. In combination, a booster casing and an adapter head formedintegrally with each other, said head having an interior taperingsurface, a bushing for receiving a fuse nipple resting on said surfacewithin said head, and a fuse socket carried by said bushing.

3. In combination, a booster casing, an adapter head having a taperingopening, and a tapering bushing in said opening.

4. In combination, a booster casing having an integral tapering portionat its open end, and a tapering bushing in and making wedging contactwith said tapering portion.

5. In combination, a booster casing, an adapter head having a taperingopening, said head and easing being drawn from a single sheet of metal,and a tapering bushing wedged in the opening of said head.

6. In combination, a booster casing, an adapter head formed integrallywith said casing and having a tapering opening and a tapering bushingfitting in said head and having internal threads for receiving thenipple of a fuse body and also having a flange for the reception of afuse socket.

'7. In combination, a booster casing and an adapter head formedintegrally with each other, the opening in the head being slightlytapered and the walls of the head where it joints the booster casingbeing abruptly inclined, and a bushing slightly tapered to fit Gopies ofthis patent may be obtained for five cents each, by addressing snugly inthe head and having a reduced portion inclined at a more abrupt anglethan the inclined portion of the head so as to prevent engagementtherebetween.

8. In combination, a booster casing and an adapter head formedintegrally with each other, the opening in the head being slightlytapered, an abruptly inclined portion between the head and casing, atapering bushing having a reduced portion inclined at a more abruptangle than the inclined portion so as to prevent engagementtherebetween, said bushing being internally threaded at its outer endand having an internal lip or flange at its lower end, and a fuse socketconnected to said lip.

9. In combination, an adapter head having a tapering opening, and abushing having a body portion tapered to correspond to said opening soas to be received snugly thereby, said bushing having at its lower end aflange and at its outer end a cylindrical rojection directed backwardlyinto the b0 y portion, said projection being internally threaded toreceive the nipple of a fuse body.

10. In combination, a booster casing and an adapter head formed from asingle sheet of metal, said head having a body portion and a skirt bentbackwardly about the body portion.

11. In combination, a booster casing and an adapter head formedintegrally from a single sheet of metal, said head having a taperingbody portion and an externally threaded skirt portion surrounding thebody portion.

12.-In combination, a booster casing and an adapter head formed from asingle sheet of metal, said head havin an internally threaded bodyportion and an externally threaded skirt portion, and a bushing screwedinto said body portion.

In testimony whereof we have hereunto set our hands.

NELSON W. DINGWALL. CLIFFORD M. BUDD.

the Commissioner of Patents,

Washington, D. 0.

